PetSafe PPA00-11326 Cat Door, Plastic, White

This cat door is generously sized for large cats or even small dogs up to 25 lb. The four-way lock allows you to choose from four access options to control your pet's access in and out of your home open, locked, in-only or out-only. The open option allows entry or exit, the locked option does not allow entry or exit, the in-only option allows entry but no exit and the out-only option allows exit but no entry.